Rosenberg, R. R. (1945). Essentials of business mathematics: Principles and practice (4th ed.). The Gregg Pub. Co..
Chicago-referens (17:e uppl.)Rosenberg, R. Robert. Essentials of Business Mathematics: Principles and Practice. 4th ed. New York : Chicago [etc.]: The Gregg Pub. Co., 1945.
MLA-referens (8:e uppl.)Rosenberg, R. Robert. Essentials of Business Mathematics: Principles and Practice. 4th ed. The Gregg Pub. Co., 1945.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.